Elastic scattering of cosmological gravitational wave backgrounds: primordial black holes and stellar objects

1Citations
Citations of this article
5Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Primordial black holes (PBHs) are plausible dark matter candidates that formed from the gravitational collapse of primordial density fluctuations. Current observational constraints allow asteroid-mass PBHs to account for all of the cosmological dark matter. We show that elastic scattering of a cosmological gravitational wave background, these black holes generate spectral distortions on the background of 0.3% for cosmologically relevant frequencies without considering coherent scattering and 5% when the coherent enhancement is included. Scattering from stellar objects induce much smaller distortions. Detectability of this signal depends on our ultimate understanding of the unperturbed background spectrum.

Cite

CITATION STYLE

APA

Howard, M., & König, M. (2024). Elastic scattering of cosmological gravitational wave backgrounds: primordial black holes and stellar objects. Journal of Cosmology and Astroparticle Physics, 2024(1). https://doi.org/10.1088/1475-7516/2024/01/045

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free